Yes, it is millions of sensors which also means that the number of MF FF sensors are "a water drop in the Ocean" when compared... Further more, the 44x33 number of sensors doesn't change the "drop in the Ocean" magnitude either... The later reports from Sony, predict that production will go back to full capacity by the end of May (that is in four weeks time). As usual with similar situations in the past, the product delays that are affected more are the "massive" production ones (meaning the smaller the sensor, the more it is affected), simply because partial recovery of production can't satisfy the product demand.
It is therefore logical to conclude that the maker gives priority as to fully recover the production of the smaller demand first (simply because the supply issues are far easier to solve) and then works his way up as to recover production for the customers that need massive supplies. It is common practice in industry to first eliminate the number of supply problems as to have less customers with a production problem and then concentrate to the major customers by putting all your power into satisfy them the best you can. The less problems a producer may have to deal with, the better he can solve them...
I guess then, the 100Mp MF Sony sensor is the smallest problem out of all for Sony to solve and perhaps the 33x44 sensor is the next smallest one... IMO, MF sensor supplies from Sony will hardly be affected at all and if they do, the issue will be solved in a few weeks time... No big deal for MF then as for P1 customers to rush and consume all the (out of production) CCD sensors that are in stock, if the issue was that huge, Hasselblad that hardly sells any CCD sensor at all (and is almost entirely depended on Sony for production) should have ceased production by now...